Protect PDF
Add a password to any PDF with AES-256 encryption and choose whether people can print or copy it. Encrypted in your browser; nothing is uploaded.
Runs in your browser. Your files and text never leave your device.
Drop a PDF to add a password
Password-protect a PDF
Add a password so only people you share it with can open the PDF. It uses AES-256 encryption, the strongest standard PDF readers support, and works with Adobe Reader, Chrome, Edge, macOS Preview and phone apps. The file is encrypted on your device; neither the PDF nor the password is uploaded.
Frequently asked questions
Can I recover a forgotten password?
No. AES-256 encryption cannot be reversed without the password, so keep it somewhere safe.
Will it open on phones?
Yes. Every modern PDF reader, including Chrome, Edge, Adobe Reader, macOS Preview and phone apps, asks for the password and opens it.